High performance adventure helmet
SIERRA RS HELMET
Maximum aerodynamics meets smart technology: the SIERRA RS is engineered for rapid head movements at high speeds. A wide field of vision, powerful ventilation, Pinlock®, EQRS – and ready for Bluetooth and the QUIN Smart Sensor. Your intelligent companion – on and off the road.














O'NEAL SIERRA RS Helmet ECHO
Why the SIERRA RS helmet?
The most important features – all summed up for you in one quick video:

MAXIMUM FIELD OF VISION
With the SIERRA RS, we’ve deliberately focused on providing an extra-wide field of vision – for better awareness of your surroundings and increased safety on the road:
SAFETY FIRST
The SIERRA RS comes equipped with the EQRS emergency system, is Bluetooth-ready, and prepped for the QUIN Smart Sensor.
VISION REDEFINED
With an integrated sun visor and Pinlock® Max Vision to prevent fogging, the SIERRA RS sets new standards in comfort, safety, and technology:
The SIERRA RS is the answer to the demands of modern adventure riders. Engineered for rapid head movements at high speeds, its aerodynamic design ensures stability and performance, while adjustable ventilation zones provide optimal airflow – both on and off the road.
What’s the difference between the SIERRA and the SIERRA RS?

